Ventilating apparatus



2 19 Feb. 2 Z7. F. w. w. PlcKANcE VENTILATING APPARATUS Filed March 26. 1924 2 Sheets-Sheet 1 luflulllt'lllmm fflfl INVENT OR z x E C N s mai C. T. P

S `Ki Ch mv. WHB E R F.

Patented F eb. 22, 1927.

` FREDERICK WILLIAM WARDEN PICKANCE, GF WIMBLEDON, LONDON, ENGLAND.

VENTILATING APPARATUS.

Application filed March 26, 1924, Serial No. 702,070, and in Great Britain May 17, 1923.

The object of this invention is to provide means whereby the amount of air which is induced to flow into a room or circulate therein, and more particularly its humidity, can be varied. Y

In carrying out my invention I provide a casing in which is located an atomizer which forms a divergent stream or jet of compress-ed humidified gas, such as air, which is directed towards an outlet from Vthe casing, and means are provided for moving the outlet and the atomizer relatively to one another. whereby the quantity of air induced to flow through the casing and consequently its humidity is accurately controlled.

` In one form of construction th-e outlet from ther casing is formed of a cone, the position ot which can be altered by a raelr and pinion graduated 'to indicate the amount onf air induced by the atomizer under given n conditions.

The atomizer may be so constructed that the water or other liquid is sprayed or atomized by a ring of compress-ed air or other gas, means such as a needle valve being provided for regulating the quantity of liquid.

lith apparatus constructed in this man ner, if the relative position or' the atomizer and the casing outlet be vari-ed without altering the position kof thefneedlevalve,

then the humidity of the air will be varied as w-ell as the quantity ofoair induced; the humidity of the air can, on kthe other hand, be varied vby varying the position of the needle valvev without altering the relative position of the atomizer and casingoutlet. The ventilation of a room and the humidity of the air therein can consequently be maintained or altered to suit any desired condition, irrespective ot the condition of the air outside the building'.

In practice, the desiredcondition of th air in a room can usually `be most readily effected by keeping the pressure of air supplied vto the atomizer and also the quantity of water atomized constant, and by altering the position of the cone to regulate the humidity'of the induced air.

Obviously air from a refrigerating plant can be admitted to the casing.

In the .accompanying drawing which illustrates the invention, Figure 1 is aside eleva-V tion, Figure 2 a plan of Figure 1, Figure 3 an end elevation, Figure 4 a detail section to a larger scale, vand Figures 5 and 6 views of a modiiication. Y

1 is a casing at the forward end of which is located an atomizer 2 which can be supplied with water or other liquid through a pipe 3 andfwith air or other gas under pressurethrough a pipe el.

rJfhe water is conducted to a hollow cone 5, the quantity of water induced by the air being regulated by a needle valve 6 having an actuating knob 7. f

The air is led through passages 8 to an annular conical space formed between the outer surface of the cone 5 and a nozzle 9, and issues from the nozzle in the form of a divergent cone which can be humidiiied to `any desired extent by adjusting the needle valve 6.

10 represents the outer wall of a building having an aperture through which the rear end ot the casing 1 projects.

vThe `rear end of th-e casing 1 is open but can be controlled by means of a coneI 11 mounted on slides 12 which can be adjustably fixed in position on the casingiby means of wing nuts 13.

The casing 1 is also provided with an inlet let'opening into the room or building in which the apparatus is iixed.

' In order to control the quantity or' air admitted froinoutside the building or from the room, the casing is `provided with shuth ters 15,- 16, pivoted to the casing at 17, 18, respectively. -The shutter 15Y can be actuated by aV lever 19, one .end of which is adapted to engage stops on the quadrant .20, while the other end is connected by alink 21 to an arm 22 connected to theshutterl in suchA a manner that as the shutter 15 is opened so the shutter 16 is closed, and vice versa.

23 is a cone having an extension 241 slidably mounted in the casing 1. Fast on the cone 23`are racks 25 meshingfwith which are pinions 26 mounted on .shafts 27, the ends of which latter are provided with bevel wheels 28 -in mesh with' bevel wheels 29 on a shaft .30 having an actuating wheel 81,

Thecasing is alsogprovided with guidesk 32 which guide the cone. The said guides are calibrated to indicatethe amount of air which will be'induced to flow through the cone 23 ifo-r a given pressure of compressed air supplied to the atomizer, and/or calibrated to indicate, thehumidityfor a given Y pressure of `compressed air and a tion of the needle valve 6.

In the modification shown in F iguresy 5 given posiil l) and ti, the casing,r l is provided (in place oit' the inlet il) with openings i3 u'hieh can he uncovered or closed lily a sleeve il which latter provided with a pin 35 engaging a slotted lever 2)(1 Alast on the pivot 1T and so shaped that the openings h5 are closed as the shutter lo is opened.

3T shows diagrunnuaticaliif a heult-ir by means oit' which the incomiiu;1 air can be heated. 58 shows (liiurrauuuaticullV .tillen-i olf an): suitable cinistruetion which ma)1 he litted when desired. l

ln operation the amount ot air which Caused to lion' thri'inn'h the cone :223 is regulated lnvuioriue the said eene to or trom the nozzle 5) ol tue atrunizer. llfhen the. cone 23 in the position shown, the smallest amount oi' air otn'hirh the zuiparatus is eapable o'iA delivering! delivered (when air at a given pressure is employed). As the eone 2&3 is moved away 'troni `the noir/:le t), an

increasing amount o't' air induced to 'tion'.

Pret'elablyY the cone i so prinjiortioned that when it is in its ext ene 'forward position the diameter ol" the outer end thereo'l is slightly greater than the diameter ot the diii'erkn'ent stream olE eoinprc ed air (whether humidiiied or not) issuing' from the nozzle 9 atthis point.

Since the amount 0'1" liquid supplied to the aton'iizer eonstant, it the needle Valve (i be unaltered, the huu'iidity ol: the air 'lowing' through the cone i?) Avaries as the position of the cone altered. Il it be desired to keep the quantity ol air flowing through the Cone Q3 constant. but to vary the humiditiy thereof, `this is etleeted h y' adjustim;r the needle valve (i by means oit the aetuating` knob 7.

1t should be noted that 'forany given position ot the cone 23. the amount o'li air induced to flow is onlyr very slightly altered.` if at all, when the `amount ot liquid flowing' through the .nozzle 9 altered, provided that the pressure of the air supplied to the pipe #l is constant.

l. Apparatus `t'or Ventilating: a building comprismeY a easing, means `within said casing* 'for creatine' a divergent stream of' air under in'essure, means 'for admitting liquid to said stream whereby the liquid is atomized and mixed with the air, means :For admitting airto said easingnan outlet 'tor the vasing, and means for obtainingr relative movel'nent between'the,outlet and the means for `creatinel the strean'i so as to vary `the amount o t' the i'nixture induced by the said stream to flow through the outlet.

:2, Apparatus tor ii'entilatinir a buildingr comprising a casing, means within said casinnr tor ereatinig a divergent stream ot air under pressure, means for admitting; liquid to Said stream whereby the liquid is atom- ;ized and mixed `with the air, means l'or 4admitting air to said casing, an inwardly llured cone termini;v anoutlet 'for the easing, .means for obtaining'relative movement between the outlet and the .means -for creating the stream so as to vary the amount olf the mixture induced by the said stream to flow through the outlet.

3. Apparatus ifor Ventilating a building comprisiunl a casing, means Within said casing' for diseharg'ingl a lnuniditied stream out air under pressure, an inlet to the easing' from outside the building', an inlet to the casing;` 'trom inside the building', an outlet from the easing' into the building, means for 'varying' the area o't either olf said inlets, and means 'for ohtainine' relative n'iovement hetween the outlet and the umanel vfor discharging' said stream so as to vary the amount ot' air induced by said stream to flow through the outlet.

ilpparatus lor Ventilating a building comprising' a casing, means within the easing' lor disehare'iii n` a lunuidii'ied stream of air under pressure, an inlet to the casing l'roni i side the building', an inlet to the fusion' from outside the building, means 'lfor rarying the area oi said inlets so that the a rea o't one inlet varies inversely as that of the other. au outlet lfrom the easing, and means iter 'varying the position olf said outlet relative to the air dishanejing means.

Apparatus for rentilating;l ay buildiirrg` crmiprising,y a casing, means within the easing' `for discharginn` therefrom into the building' a humidil'ied stream olfv air, means 4lor eon'trolliiur the degreeo'l lunnidity o't ihe air by varying the amount ol' liquid `ad-A mitted thereto, and ineens tor controllinuthe humidity by varying the amount ot air caused to tion' throlurh the easing.

t3. Apparatus 'for Ventilating a huilding' comprisinnl a casing', means `within the eas ing tor discharging a huiuidilied stream of air under pressure, an inlet to the Casing' ilfroin Within the building, an outlet 'from the easing); `to the building', and means lor if'arying `the relative position of the outlet and said first" named means,

i". ilrpparatns :lor Ventilating; a building; compr' "nef a Casina, means `within the eas inc` lor diseharning( a humidilied stream et' air under pressure, an outlet to the building' from the easing', means lor controllina' 'the humidity ot the air by rai-ying' the amount ot moisture admitted to said humidilied stream, and other means 'tor controlling` the humidityr oit the airbjr .uri/tine' the relative position oi' the outlet und the lirst--nanuul means thereinY varying' the `anunint oli in dured ein ln testimony that my ii'rt'entiou l hai li'lth day oil? March Mln-"t,

l claim the i'oreujoiiug as 'e ed my name this FREDEilCK WllLlAM WRDEN PICKAlNCE. 

